30 APRIL Meeting Minutes Chair. R. Doney (SOC), Don Michaels (SOL) Announcements: -- A couple of items regarding receiver 1: We achived lock on Receiver 1 on Monday (at a frequency roughly 350 KHz from nominal). The carrier frequency was much lower than expected and must be raised. The idea now is to raise the carrier frequency of the high gain antenna, and lower the carrier frequency of the low gain antenna. Therefore, when sending commands to the satellite, if the high gain antenna loses lock, then commanding can be instantly switched to the low gain antenna without any time-consuming transition of the carrier frequency at the station. The tests will continue today and tomorrow for certain. **** NRT will not be very predictable until these tests are complete. Recall from the weekly meeting minutes -- the FOT cannot test on DSS-27 antenna which we have scheduled every day ~ 22 UT. Therefore, please try to schedule your commanding to the later DSS-27 pass or very early in the morning working hours. Planners, please have pointing of targets and plans ready to load well in advance and work with your operations people to insure minimal impact. -- There was another test of SUMER commanding from MEDOC this morning from VAX and PC computers (and switching from one computer to the other). The test was successful. No further testing is expected. FOT report: S/C Status: Nominal, Except Receiver #1 Anomaly Summary: 119/2313 CDS Watchdog trip 120/0430 - CEPAC/ ESU data request error Accomplished Activities: RSL, VIRGO, CEPAC, Receiver #1 testing Planned Activities: RSL, VIRGO, SWAN, Receiver #1 Testing Ground System Anomaly Summary: 120/0125 6 min. NRT delay due to rcvr 2 losing lock 120/0528 1 min. recoverable data due to TM dropout 120/0551 2 min. recoverable data due to line hit @ D46 120/0341 3 min. recoverable data due to message switch activity Sun Status: Prominence now moving across the central meridian. CME occurred last evening in the northeast at 0200-0500. Instrument Status: CDS - Filament campaign on the prominence on the central meridian & JOP 54. SUMER -- Filament campaign and turbulence studies @ sun center & MEDOC tests. UVCS -- Pointing at the west limb 18 degrees north of the equator, performing a second map for global sun studies. LASCO -- Synoptic program with extra exposures in C1 for loop studies. EIT -- CME watch continues. MDI -- Continuous contact & a flat field patch was performed